pub struct CurrencyAdapter<C, OU>(/* private fields */);
👎Deprecated: Please use the fungible trait and FungibleAdapter. This struct will be removed some time after March 2024.
Expand description
Implements the transaction payment for a pallet implementing the [Currency
]
trait (eg. the pallet_balances) using an unbalance handler (implementing
[OnUnbalanced
]).
The unbalance handler is given 2 unbalanceds in [OnUnbalanced::on_unbalanceds
]: fee
and
then tip
.
Trait Implementations§
source§impl<T, C, OU> OnChargeTransaction<T> for CurrencyAdapter<C, OU>where
T: Config,
C: Currency<<T as Config>::AccountId>,
C::PositiveImbalance: Imbalance<<C as Currency<<T as Config>::AccountId>>::Balance, Opposite = C::NegativeImbalance>,
C::NegativeImbalance: Imbalance<<C as Currency<<T as Config>::AccountId>>::Balance, Opposite = C::PositiveImbalance>,
OU: OnUnbalanced<<C as Currency<<T as Config>::AccountId>>::NegativeImbalance>,
impl<T, C, OU> OnChargeTransaction<T> for CurrencyAdapter<C, OU>where
T: Config,
C: Currency<<T as Config>::AccountId>,
C::PositiveImbalance: Imbalance<<C as Currency<<T as Config>::AccountId>>::Balance, Opposite = C::NegativeImbalance>,
C::NegativeImbalance: Imbalance<<C as Currency<<T as Config>::AccountId>>::Balance, Opposite = C::PositiveImbalance>,
OU: OnUnbalanced<<C as Currency<<T as Config>::AccountId>>::NegativeImbalance>,
Default implementation for a Currency and an OnUnbalanced handler.
The unbalance handler is given 2 unbalanceds in [OnUnbalanced::on_unbalanceds
]: fee
and
then tip
.
source§fn withdraw_fee(
who: &T::AccountId,
_call: &T::RuntimeCall,
_info: &DispatchInfoOf<T::RuntimeCall>,
fee: Self::Balance,
tip: Self::Balance
) -> Result<Self::LiquidityInfo, TransactionValidityError>
fn withdraw_fee( who: &T::AccountId, _call: &T::RuntimeCall, _info: &DispatchInfoOf<T::RuntimeCall>, fee: Self::Balance, tip: Self::Balance ) -> Result<Self::LiquidityInfo, TransactionValidityError>
Withdraw the predicted fee from the transaction origin.
Note: The fee
already includes the tip
.
source§fn correct_and_deposit_fee(
who: &T::AccountId,
_dispatch_info: &DispatchInfoOf<T::RuntimeCall>,
_post_info: &PostDispatchInfoOf<T::RuntimeCall>,
corrected_fee: Self::Balance,
tip: Self::Balance,
already_withdrawn: Self::LiquidityInfo
) -> Result<(), TransactionValidityError>
fn correct_and_deposit_fee( who: &T::AccountId, _dispatch_info: &DispatchInfoOf<T::RuntimeCall>, _post_info: &PostDispatchInfoOf<T::RuntimeCall>, corrected_fee: Self::Balance, tip: Self::Balance, already_withdrawn: Self::LiquidityInfo ) -> Result<(), TransactionValidityError>
Hand the fee and the tip over to the [OnUnbalanced]
implementation.
Since the predicted fee might have been too high, parts of the fee may
be refunded.
Note: The corrected_fee
already includes the tip
.
type LiquidityInfo = Option<<C as Currency<<T as Config>::AccountId>>::NegativeImbalance>
Auto Trait Implementations§
impl<C, OU> RefUnwindSafe for CurrencyAdapter<C, OU>where
C: RefUnwindSafe,
OU: RefUnwindSafe,
impl<C, OU> Send for CurrencyAdapter<C, OU>
impl<C, OU> Sync for CurrencyAdapter<C, OU>
impl<C, OU> Unpin for CurrencyAdapter<C, OU>
impl<C, OU> UnwindSafe for CurrencyAdapter<C, OU>where
C: UnwindSafe,
OU: UnwindSafe,
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